Finding the Fourth Proportional to 2,567.89, 3,851.84 and 620.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,567.89 : 3,851.84 = 620.09 : x
2. Step 2: Convert to fraction form
   2,567.89/3,851.84 = 620.09/x
3. Step 3: Cross multiply
   2,567.89x = 3,851.84 × 620.09
4. Step 4: Simplify right side
   2,567.89x = 2,388,487.47
5. Step 5: Solve for x
   x = 2,388,487.47/2,567.89
6. Step 6: Final answer
   x = 930.14